fix: remove unsafe exec() in person.cpp

[orbisai0security]

Summary

Fix critical severity security issue in basic_content/this/person.cpp.

Vulnerability

Field	Value
ID	V-001
Severity	CRITICAL
Scanner	multi_agent_ai
Rule	V-001
File	basic_content/this/person.cpp:10

Description: The person.cpp constructor uses strcpy(name, n) to copy a caller-supplied string into a fixed-size char array without any bounds checking. If the caller passes a string longer than the destination buffer, the excess bytes overwrite adjacent stack or heap memory, enabling arbitrary code execution via return-address or function-pointer overwrite. The sig_examp.cpp files use strcpy with hardcoded strings (currently safe) but establish an unsafe coding pattern that is likely to be replicated with variable-length input.

Changes

• basic_content/this/person.cpp

Verification

• Build passes
• Scanner re-scan confirms fix
• LLM code review passed

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Automated security fix by OrbisAI Security